When Leonardo’s anger causes him to injure Splinter, he seeks redemption by travelling to Japan. There, he begins a quest to find the Ancient One, who once trained Splinter’s sensei, Hamato Yoshi.
.TMNT 2006 S04-E14 “The Ancient One” 1/2
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.TMNT 2006 S04-E14 “The Ancient One” 2/2
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Popularity: 8%
Master Splinter invites Miyamoto Usagi—and the irresponsible, sloppy Murakami Gennosuke—from their dimension to Earth in the hopes that Usagi can speak to Leonardo about his wayward attitude. When Gen wanders off to explore downtown Manhattan, the Turtles, Usagi and Casey set out to find him. Their search becomes complicated when an assassin, sent after Leonardo by Lord Hebi, follows Gen and Usagi to Earth.
.TMNT 2006 S04-E13 “Samurai Tourist” 1/2
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.TMNT 2006 S04-E13 “Samurai Tourist” 2/2
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Popularity: 8%
The Turtles are preparing to celebrate Halloween—one of the few times in the year where they can be seen in public. When costumed thieves steal a statue from April’s antique shop, the Turtles put aside their jack-o’-lanterns and pursue them. This theft is part of a bigger plan by a sorcerer, the King of Thieves, who plans to use the statue to unleash a legion of minions on the city. When the Turtles come to disrupt his plans, the sorcerer summons the Thievery God, bringing the statue to life; it then sets out to destroy the Turtles.
.TMNT 2006 S04-E12 All Hallows Thieves 1/3
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.TMNT 2006 S04-E12 All Hallows Thieves 2/3
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.TMNT 2006 S04-E12 All Hallows Thieves 3/3
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Popularity: 10%
Nobody returns and reaches out to the Turtles to help him stop his foe, Ruffington, and the Purple Dragons from selling weapons to a violent street gang, the Turks.
.TMNT 2006 S04-E11 “Still Nobody” 1/2
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.TMNT 2006 S04-E11 “Still Nobody” 2/2
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Popularity: 9%
As Hun expands the Purple Dragons’ power via illicit arms trades, the Turtles and Casey Jones seek to stop him yet again. Leonardo continues to unduly press his brothers while Casey seeks revenge on Hun for causing a tragic event during his childhood.
.TMNT 2006 S04-E10 “Dragons Rising” 1/2
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.TMNT 2006 S04-E10 “Dragons Rising” 2/2
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Popularity: 10%
When the president threatens to cut the funding of the Earth Protection Force, Agent Bishop engineers an alien invasion to attack the president during a press conference before a meeting at the United Nations.
.TMNT 2006 S04-E09 “Aliens Among Us” 1/2
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.TMNT 2006 S04-E09 “Aliens Among Us” 2/2
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Popularity: 9%
During a meditation session, Master Splinter’s sudden collapse is the first of a nightmarish chain of events, which force the Turtles to face death, destruction, and tragedy. Matters become worse as they come face-to-face with their most contentious foes, who, forming an alliance, seek to break the Turtles’ spirits.
.TMNT 2005 S04-E08 “Bad Day” 1/2
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.TMNT 2005 S04-E08 “Bad Day” 2/2
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Popularity: 10%
During a nighttime training exercise on the rooftops of New York City, the Turtles are interrupted by two warring Avians, a race whose appearance resembles angels. The Turtles come to the aid of Raptarr, who is trying to stop the exiled Mephos from starting a civil war in the Avian city and conquering the Earth.
.TMNT 2006 S04-E07 “A Wing and a Prayer” 1/2
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.TMNT 2006 S04-E07 “A Wing and a Prayer” 2/2
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Popularity: 10%
Michelangelo is challenged by his a former Battle Nexus rival, Kluh, who feels that an interference during their final match gave Mikey an unfair opportunity to win. Considering the fluke-like nature of his victory, Mikey consults Leonardo to train him. Despite his claims of unfairness, Kluh’s father places a spell on the Battle Nexus to ensure that the rematch is a fight to the death.
.TMNT 2006 S04-E06 “Grudge Match” part 1/2
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.TMNT 2006 S04-E06 “Grudge Match” part 2/2
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Popularity: 10%
The Turtles and Casey take their training to an abandoned brickworks and practice stealth in a game of hide and seek. Their training is soon interrupted by an enigmatic figure bandaged from head to toe. The man, who seems to have a special relationship with rats, attacks the team viciously and captures Michelangelo. Leonardo rambunctiously retaliates, to the chagrin of his brothers and Casey. Unbeknownst to them, the Turtles have played a large role in this stranger’s dark past.
.TMNT 2006 S04-E05 “I, Monster” 1/2
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.TMNT 2006 S04-E05 “I, Monster” 2/2
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Popularity: 10%
